Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rf4 win in 1 half-moves
3 Ra4 loss in 2 half-moves
4 Rb1 loss in 2 half-moves
5 Rb3 loss in 2 half-moves
6 Rb5 loss in 2 half-moves
7 Rb6 loss in 2 half-moves
8 Rb7 loss in 2 half-moves
9 Rb8 loss in 2 half-moves
10 Rc4 loss in 2 half-moves
11 Rd4 loss in 2 half-moves
12 Re4 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rh4 loss in 2 half-moves
15 Ne2 loss in 1 half-moves
16 Ne4 loss in 1 half-moves
17 Nf1 loss in 1 half-moves
18 Nf5 loss in 1 half-moves
19 Nh1 loss in 1 half-moves
20 Nh5 loss in 1 half-moves